CN101818807A - Speed reducer - Google Patents
Speed reducer Download PDFInfo
- Publication number
- CN101818807A CN101818807A CN201010148355A CN201010148355A CN101818807A CN 101818807 A CN101818807 A CN 101818807A CN 201010148355 A CN201010148355 A CN 201010148355A CN 201010148355 A CN201010148355 A CN 201010148355A CN 101818807 A CN101818807 A CN 101818807A
- Authority
- CN
- China
- Prior art keywords
- speed reducer
- axle sleeve
- protective cover
- axis body
- end cap
- Prior art date
- Legal status (The legal status 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 status listed.)
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Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 42
- 230000001681 protective effect Effects 0.000 claims abstract description 34
- 210000005056 cell body Anatomy 0.000 claims description 26
- 239000000314 lubricant Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000004519 grease Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a speed reducer, which comprises a vertical-down shaft body (1), and an end cover (2) sleeved outside the shaft body (1). A protective cover (3) sleeved outside the shaft body (1) is arranged below the end cover (2); a groove body (31) is arranged on the inner side of the protective cover (3); and a flow passage is arranged between the protective cover (3) and the end cover (2) to introduce lubricating oil leaked between the end cover (2) and the shaft body (1) into the groove body (31). The sealability of the input end or output end of the speed reducer can be improved and hidden danger in oil leakage is completely eradicated.
Description
Technical field
The present invention relates to the field of mechanical technique of slowing down, particularly a kind of speed reducer.
Background technique
In general, speed reducer is a kind of power transmission mechanism, and the velocity transducer that utilizes gear decelerates to needed winding number with the winding number of motor or motor, and obtains the mechanism of big torque.Speed reducer has obtained using widely in the transmission system of various machinery.
Please refer to Fig. 1, Fig. 1 is the structural representation of a kind of typical speed reducer in the prior art.
Speed reducer of the prior art comprise axis body 1 ', axis body 1 ' the outside be set with end cap 2 ', axis body 1 ' and end cap 2 ' between be provided with lip type oil seal 3 ' and V-type circle 4 ', this axis body 1 ' be specifically as follows output shaft, but be not limited to this, this axis body 1 ' also can be input shaft.When in running order, output shaft and connects working machine straight down.
In a lot of industries, such as the food pharmaceuticals industry, strict demand is arranged for working environment, forbid the output shaft leakage of oil.In view of this, solution of the prior art is: as mentioned above, end cap 2 ' and output shaft between use lip type oil seal 3 ' and the V-type circle 4 ' sealing that matches prevent oil seepage, simultaneously, the bearing of output shaft is by outside grease nipple 5 ' injection grease lubrication, because grease is thickness relatively, thereby easy to leak not.
Yet above-mentioned solution leakage proof effect of the prior art is also bad, can not avoid the leakage of oil hidden danger of speed reducer output terminal fully; In addition, when axis body shown in Figure 11 ' when being input shaft, there is leakage of oil hidden danger equally in the speed reducer input end.
Given this, how improving the sealability of the input end or the output terminal of speed reducer, stop leakage of oil hidden danger, is the problem that those skilled in the art need solution badly.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of speed reducer, and this speed reducer can improve the sealability of the input end or the output terminal of speed reducer, stops leakage of oil hidden danger.
For solving the problems of the technologies described above, the invention provides a kind of speed reducer, comprise axis body straight down, and be set in the end cap in the described axis body outside; The below of described end cap is provided with the protective cover that is set in the described axis body outside, and the inboard of described protective cover is provided with cell body; Be provided with the runner of the lubricant oil that leaks between described end cap and the described axis body being introduced described cell body between described protective cover and the described end cap.
Preferably, described axis body is an output shaft.
Preferably, described protective cover is provided with the delivery outlet that is communicated with described cell body, and described delivery outlet is connected with let-off gear(stand).
Preferably, described axis body is set with first axle sleeve, and described protective cover is set in the outside of described axis body by described first axle sleeve.
Preferably, described first axle sleeve comprises the axle sleeve body, and described protective cover is set in the outside of described axle sleeve body; The upper end portion of described axle sleeve body is connected with the bump that radially protrudes laterally, and the end face of described lug boss forms described runner.
Preferably, described protective cover comprises madial wall and the outer side wall that forms described cell body, and described madial wall is positioned at the below of described bump and fits with described axle sleeve body, and described outer side wall is provided with described delivery outlet; The radial length of described bump is more than or equal to the radial thickness of described madial wall.
Preferably, the end face of described bump outer end is the inclined-plane.
Preferably, be provided with v type circle between described protective cover and described first axle sleeve.
Preferably, described end cap is set in the outside of described axis body by second axle sleeve, and is provided with oil sealing between described end cap and described second axle sleeve.
Preferably, the number of described oil sealing is at least two.
On the basis of existing technology, the below of the end cap of speed reducer provided by the present invention is provided with the protective cover that is set in the described axis body outside, and the inboard of described protective cover is provided with cell body, and this cell body is used to store the lubricant oil of seepage between end cap and the axis body; And, be provided with the runner of the lubricant oil of described leakage being introduced described cell body between described protective cover and the described end cap.In technological scheme of the present invention, when between axis body and the end cap during seepage lubricant oil, this lubricant oil can flow in the described cell body along described runner, obviously can not ooze out from the output terminal or the input end of speed reducer.Thereby speed reducer provided by the present invention can improve the sealability of the input end or the output terminal of speed reducer, stops leakage of oil hidden danger.
Description of drawings
Fig. 1 is the structural representation of a kind of typical speed reducer in the prior art;
Fig. 2 is the structural representation of speed reducer in an embodiment of the present invention;
Fig. 3 is the partial enlarged drawing at A position among Fig. 2.
Embodiment
The technical problem to be solved in the present invention provides a kind of speed reducer, and this speed reducer can improve the sealability of the input end or the output terminal of speed reducer, stops leakage of oil hidden danger.
In order to make those skilled in the art understand technological scheme of the present invention better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 2, Fig. 2 is the structural representation of speed reducer in an embodiment of the present invention.
In one embodiment, speed reducer provided by the present invention comprises axis body 1, and when in running order, this axis body 1 straight down.As shown in Figure 2, this axis body 1 outside is set with end cap 2, and the sidewall of this end cap 2 is provided with grease nipple 9, and this grease nipple 9 is used for the shot lubrication grease, and bearing is lubricated.
As shown in Figure 2, on the basis of above-mentioned prior art, the outside of axis body 1 further is set with protective cover 3, and this protective cover 3 is positioned at the below of end cap 2.The axial inboard of this protective cover 3 is provided with cell body 31, and this cell body 31 is used to store the lubricant oil from seepage between end cap 2 and the axis body 1.For the lubricant oil that guarantees described seepage can all flow in the cell body 31, also be provided with runner between end cap 2 and the protective cover 3, thereby the lubricant oil of described seepage is all introduced in the described cell body 31.
In technological scheme of the present invention, when between axis body 1 and the end cap 2 during seepage lubricant oil, this lubricant oil can flow in the described cell body 31 along described runner, obviously can not ooze out from the output terminal or the input end of speed reducer.Thereby speed reducer provided by the present invention can improve the sealability of the input end or the output terminal of speed reducer, stops leakage of oil hidden danger.
This axis body 1 is specifically as follows output shaft, and as described in full, output shaft and then is connected with working machine stop leakage of oil hidden danger, thereby industries such as assurance food medicine is to the requirement of working environment.In addition, this axis body 1 also can be input shaft, equally also can stop leakage of oil hidden danger.
As shown in Figure 2, in the above-described embodiments, can make further improvement to protective cover 3.Such as, protective cover 3 is provided with the delivery outlet that is communicated with cell body 31, and connects let-off gear(stand) 4 in this delivery outlet position, and let-off gear(stand) 4 can further connect the container that reclaims lubricant oil.In this embodiment, the lubricant oil that flows in the cell body 31 can flow in the described container along let-off gear(stand) 4, obviously, the lubricant oil of seepage can not assembled in cell body 31, thereby also overflow with regard to having avoided filling with lubricant oil in the cell body 31, thereby can further improve the leakage proof effect of speed reducer output terminal, stop leakage of oil hidden danger.
As shown in Figure 2, in above-mentioned any embodiment, described output sleeve is equipped with first axle sleeve 5, and protective cover 3 is set in the outside of described output shaft by first axle sleeve 5.This embodiment makes that suit is reliable, tight between protective cover 3 and the described output shaft.
Please also refer to Fig. 2 and Fig. 3, Fig. 3 is the partial enlarged drawing at A position among Fig. 2.
In the above-mentioned embodiment who comprises first axle sleeve 5, can make specific design to its structure.Such as, first axle sleeve 5 comprises axle sleeve body 51 and bump 52, this bump 52 is positioned at the upper end portion of axle sleeve body 51, and protrudes along the radially outward side of first axle sleeve 5.As shown in Figure 3, protective cover 3 is set in the outside of axle sleeve body 51.
In this embodiment, the end face of bump 52 forms the runner of the described seepage lubricant oil of drainage, and when lubricant oil oozed out between output shaft and end cap 2, lubricant oil can drop on the end face of bump 52, and along this end face, lubricant oil flows in the cell body 31.Obviously, this structural design is simple and convenient, and the reliability height.
Please refer to Fig. 3, on the basis of the foregoing description, can make further improvement.
Particularly, protective cover 3 comprises madial wall 32 and outer side wall 33, and madial wall 32, outer side wall 33 and the diapire between the two surround the cell body 31 of protective cover 3.The delivery outlet that connects let-off gear(stand) 4 is located on the outer side wall 33.As shown in Figure 3, madial wall 32 is positioned at the below of bump 52, and fits tightly with axle sleeve body 51, and in addition, the bottom surface of the end face of madial wall 32 and bump 52 fits tightly.
On the basis of said structure, for guaranteeing that lubricant oil can flow in the cell body 31 along the end face of bump 52 smoothly, the radial length of bump 52 need be more than or equal to the radial thickness of madial wall 32, that is the outermost end of bump 52 will surpass the top that madial wall 32 extend into cell body 31.Obviously, this improved procedure can guarantee that the lubricant oil of seepage can all flow in the cell body 31.
Further, flow comparatively swimmingly at the end face of bump 52 in order to guarantee lubricant oil, as shown in Figure 3, the end face of bump 52 outer ends is the inclined-plane, and this inclined-plane is downward-sloping from inside to outside.
Certainly, the end face of bump 52 can be downward-sloping from inside to outside on the whole, and on this basis, the end face of bump 52 outer ends further is set to the inclined-plane.Obviously, this improved procedure can further improve the smoothness that lubricant oil flows.
As shown in Figures 2 and 3, can further be provided with V-type circle 7 between the protective cover 3 and first axle sleeve 5.This V-type circle 7 plays the effect that prevents oil leak on the one hand, can play dustproof effect on the other hand.
As shown in Figure 3, in above-mentioned any embodiment, output sleeve is equipped with second axle sleeve 6, and end cap 2 is set in the outside of output shaft by second axle sleeve 6.On the basis; in order further to improve the leakage proof effect between the end cap 2 and second axle sleeve 6, can be provided with oil sealing 8 between the end cap 2 and second axle sleeve 6, oil sealing 8 is specifically as follows lip type oil seal; but be not limited thereto, the oil sealing of other types obviously also should be within protection scope of the present invention.
In order further to improve sealability, as shown in Figure 3, the quantity of oil sealing 8 can be two.Certainly, under the prerequisite that the space allows, the quantity of oil sealing can also be for a plurality of.
More than a kind of speed reducer provided by the present invention is described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a speed reducer comprises axis body (1) straight down, and is set in the end cap (2) in described axis body (1) outside; It is characterized in that the below of described end cap (2) is provided with the protective cover (3) that is set in described axis body (1) outside, and the inboard of described protective cover (3) is provided with cell body (31); Be provided with between described protective cover (3) and the described end cap (2) lubricant oil that leaks between described end cap (2) and the described axis body (1) is introduced the runner of described cell body (31).
2. speed reducer as claimed in claim 1 is characterized in that, described axis body (1) is an output shaft.
3. speed reducer as claimed in claim 2 is characterized in that, described protective cover (3) is provided with the delivery outlet that is communicated with described cell body (31), and described delivery outlet is connected with let-off gear(stand) (4).
4. as each described speed reducer of claim 1 to 3, it is characterized in that described axis body (1) is set with first axle sleeve (5), described protective cover (3) is set in the outside of described axis body (1) by described first axle sleeve (5).
5. speed reducer as claimed in claim 4 is characterized in that, described first axle sleeve (5) comprises axle sleeve body (51), and described protective cover (3) is set in the outside of described axle sleeve body (51); The upper end portion of described axle sleeve body (51) is connected with the bump (52) that radially protrudes laterally, and the end face of described lug boss (52) forms described runner.
6. speed reducer as claimed in claim 5, it is characterized in that, described protective cover (3) comprises madial wall (32) and the outer side wall (33) that forms described cell body (31), described madial wall (32) is positioned at the below of described bump (52) and fits with described axle sleeve body (51), and described outer side wall (33) is provided with described delivery outlet; The radial length of described bump (52) is more than or equal to the radial thickness of described madial wall (32).
7. speed reducer as claimed in claim 6 is characterized in that, the end face of described bump (52) outer end is the inclined-plane.
8. speed reducer as claimed in claim 7 is characterized in that, is provided with V-type circle (7) between described protective cover (3) and described first axle sleeve (5).
9. speed reducer as claimed in claim 7 is characterized in that, described end cap (2) is set in the outside of described axis body (1) by second axle sleeve (6), and is provided with oil sealing (8) between described end cap (2) and described second axle sleeve (6).
10. speed reducer as claimed in claim 9 is characterized in that, the number of described oil sealing (8) is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101483557A CN101818807B (en) | 2010-04-14 | 2010-04-14 | Speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101483557A CN101818807B (en) | 2010-04-14 | 2010-04-14 | Speed reducer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101818807A true CN101818807A (en) | 2010-09-01 |
| CN101818807B CN101818807B (en) | 2012-02-29 |
Family
ID=42654015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101483557A Active CN101818807B (en) | 2010-04-14 | 2010-04-14 | Speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101818807B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678886A (en) * | 2011-03-16 | 2012-09-19 | 沃德(天津)传动有限公司 | Speed reducer and mounting method of distance ring of speed reducer |
| CN102734470A (en) * | 2012-06-27 | 2012-10-17 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
| CN104033576A (en) * | 2014-06-18 | 2014-09-10 | 江苏赫夫特齿轮制造有限公司 | Vertical reducer seal structure and vertical reducer |
| CN110486423A (en) * | 2019-08-28 | 2019-11-22 | 浙江三欣重工传动有限公司 | A kind of wear-resistant helical speed reduction gear and its application method |
| DE102019214380A1 (en) * | 2019-09-20 | 2021-03-25 | Zf Friedrichshafen Ag | Sealing concept for an output shaft |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360506A (en) * | 2003-06-03 | 2004-12-24 | Kobelco Contstruction Machinery Ltd | Seal structure for hydraulic pump |
| CN201232752Y (en) * | 2008-07-22 | 2009-05-06 | 天津天重中直科技工程有限公司 | Sealing device for output terminal of speed reducer |
| CN201277196Y (en) * | 2008-10-31 | 2009-07-22 | 鞍钢集团矿业公司 | Bearing seal device for large centrifugal fan |
| CN101603585A (en) * | 2009-06-29 | 2009-12-16 | 浙江通力重型齿轮股份有限公司 | Vertical type dry well mounting and sealing mechanism of speed reducer |
| CN201666351U (en) * | 2010-04-14 | 2010-12-08 | 胡炜 | Speed reducer |
-
2010
- 2010-04-14 CN CN2010101483557A patent/CN101818807B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360506A (en) * | 2003-06-03 | 2004-12-24 | Kobelco Contstruction Machinery Ltd | Seal structure for hydraulic pump |
| CN201232752Y (en) * | 2008-07-22 | 2009-05-06 | 天津天重中直科技工程有限公司 | Sealing device for output terminal of speed reducer |
| CN201277196Y (en) * | 2008-10-31 | 2009-07-22 | 鞍钢集团矿业公司 | Bearing seal device for large centrifugal fan |
| CN101603585A (en) * | 2009-06-29 | 2009-12-16 | 浙江通力重型齿轮股份有限公司 | Vertical type dry well mounting and sealing mechanism of speed reducer |
| CN201666351U (en) * | 2010-04-14 | 2010-12-08 | 胡炜 | Speed reducer |
Non-Patent Citations (1)
| Title |
|---|
| 《中国设备工程》 20060831 张文华 浸油式润滑齿轮减速机漏油处理方法 图1 , 2 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678886A (en) * | 2011-03-16 | 2012-09-19 | 沃德(天津)传动有限公司 | Speed reducer and mounting method of distance ring of speed reducer |
| CN102734470A (en) * | 2012-06-27 | 2012-10-17 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
| CN102734470B (en) * | 2012-06-27 | 2015-04-29 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
| CN104033576A (en) * | 2014-06-18 | 2014-09-10 | 江苏赫夫特齿轮制造有限公司 | Vertical reducer seal structure and vertical reducer |
| CN110486423A (en) * | 2019-08-28 | 2019-11-22 | 浙江三欣重工传动有限公司 | A kind of wear-resistant helical speed reduction gear and its application method |
| DE102019214380A1 (en) * | 2019-09-20 | 2021-03-25 | Zf Friedrichshafen Ag | Sealing concept for an output shaft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101818807B (en) | 2012-02-29 |
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Denomination of invention: Production process of cycloidal gear of speed reducer Effective date of registration: 20131113 Granted publication date: 20120229 Pledgee: Bank of Dalian Co. Tianjin branch Pledgor: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2013120000052 |
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Denomination of invention: Production process of cycloidal gear of speed reducer Effective date of registration: 20141114 Granted publication date: 20120229 Pledgee: Bank of Dalian Co. Tianjin branch Pledgor: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2014990000945 |
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Denomination of invention: Production process of cycloidal gear of speed reducer Effective date of registration: 20160412 Granted publication date: 20120229 Pledgee: Bank of Dalian Co. Tianjin branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: 2016120000014 |
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Denomination of invention: A reducer Effective date of registration: 20220610 Granted publication date: 20120229 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2022120000027 |
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Denomination of invention: A type of reducer Effective date of registration: 20230828 Granted publication date: 20120229 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2023120000074 |
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