CN103322168A - Speed reducer and sealing device thereof - Google Patents
Speed reducer and sealing device thereof Download PDFInfo
- Publication number
- CN103322168A CN103322168A CN2012100722386A CN201210072238A CN103322168A CN 103322168 A CN103322168 A CN 103322168A CN 2012100722386 A CN2012100722386 A CN 2012100722386A CN 201210072238 A CN201210072238 A CN 201210072238A CN 103322168 A CN103322168 A CN 103322168A
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- CN
- China
- Prior art keywords
- seal
- speed reducer
- dust cover
- end cap
- float grease
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- 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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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 77
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 239000000428 dust Substances 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000004519 grease Substances 0.000 claims description 34
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 230000007717 exclusion Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
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Abstract
The invention discloses a sealing device used for a speed reducer. Combined sealing pieces can effectively prevent external dust or impurity particles from entering the interior of the speed reducer, so that influences on normal operation of all transmission shafts and main related working parts are avoided; and at the same time, a floating oil seal can guarantee relative airtightness between a speed reducer box body and an external space and prevents oil inside the speed reducer box body from leaking outside the box body. Particularly in working conditions of higher operating loads and larger torque of a low speed shaft and the like of the speed reducer, the sealing device with the structure can still guarantee that the speed reducer has higher structure airtightness and dustproof competence, and an oil leakage phenomenon in an operation process can be effectively avoided. The invention further discloses the speed reducer applying the sealing device.
Description
Technical field
The present invention relates to the gearing technical field, particularly a kind of reducer sealing device.The invention still further relates to a kind of speed reducer of using the sealing device.
Background technique
Along with the fast development of industrial construction, the performance of transmission device is also updated, and speed reducer is widely used in the every aspect of mechanical association area as a kind of common transmission device.And along with the continuing to increase of working strength, people also have higher requirement to the usability of retarder.
Present existing speed reducer, its casing end and each transmission shaft joint are provided with seal arrangement usually, these seal arrangements can guarantee that the main working parts at each transmission shaft place in the speed reducer running avoids the impact of external dust or impurity, avoid simultaneously infiltrating the oil leakage phenomenon that causes in the Seal cage because of the lubricant oil of box body of speed reducer inside.
Generally speaking, it is the seal arrangement that main body part consists of that the speed reducer driving shaft place installs additional by outside framework oil seal usually, although this kind seal arrangement can satisfy the basic sealing needs of speed reducer, but for the lower lower velocity shaft of rotating speed, especially under the special operation condition conditions such as underground work, when the speed reducer long time running is worked, lubricant oil still can occur and penetrate into the interior phenomenon of Seal cage, affect the normal operation of associated component, and under this kind high torque (HT) operating mode, this kind seal arrangement is thrown away and can't be avoided in the underground work process dust in the surrounding environment or granule foreign to enter transmission shaft and box house, thereby the overall operation of speed reducer is impacted.
Therefore, how to improve the sealing of speed reducer, improve its dirt exclusion capabilities, and what avoid oil leakage phenomenon is the important technological problems that those skilled in the art need to solve at present.
Summary of the invention
The purpose of this invention is to provide a kind of reducer sealing device, sealing and dirt exclusion capabilities that the sealing device can the Effective Raise speed reducer, and avoid the generation of oil leakage phenomenon.Another object of the present invention provides a kind of speed reducer of using above-mentioned seal arrangement.
For solving the problems of the technologies described above, the invention provides a kind of seal arrangement, be used for speed reducer, comprise the end cap that matches with box body of speed reducer, the inboard of described end cap is provided with the dust cover with the speed reducer driving shaft coaxial linkage, be provided with the combination seal sheet between described dust cover and the described end cap, the bottom of described dust cover is provided with the float grease seal that matches with speed reducer driving shaft and end cap respectively, and upper oil sealing and the described dust cover of described float grease seal link, and lower oil sealing and the described end cap of described float grease seal fix.
Preferably, described combination seal sheet comprises the annular seal sheet that the bearing of trend of some axis along described dust cover shifts to install, and each described annular seal sheet is arranged successively and fitted tightly along the bearing of trend of the axis of described dust cover.
Preferably, the peripheral part of described dust cover has the first ring-type seal groove, and described combination seal sheet specifically is arranged in described the first ring-type seal groove.
Preferably, the bottom of described dust cover has the second annular seal groove, and the upper oil sealing of described float grease seal specifically is arranged in described the second annular seal groove, and the madial wall of the upper oil sealing of described float grease seal and described the second annular seal groove fits tightly.
Preferably, the middle part of described end cap has the 3rd annular seal groove, and the lower oil sealing of described float grease seal specifically is arranged in described the 3rd annular seal groove, and the madial wall of the lower oil sealing of described float grease seal and described the 3rd annular seal groove fits tightly.
The present invention also provides a kind of speed reducer, comprises the casing and the transmission shaft that cooperatively interact, and the end of described casing is provided with the seal arrangement that matches with described transmission shaft and described casing respectively, and described seal arrangement is specially above-mentioned each described seal arrangement.
Relative above-mentioned background technology, seal arrangement provided by the present invention, be used for speed reducer, comprise the end cap that matches with box body of speed reducer, the inboard of described end cap is provided with the dust cover with the speed reducer driving shaft coaxial linkage, be provided with the combination seal sheet between described dust cover and the described end cap, the bottom of described dust cover is provided with the float grease seal that matches with speed reducer driving shaft and end cap respectively, and upper oil sealing and the described dust cover of described float grease seal link, and lower oil sealing and the described end cap of described float grease seal fix.In the working procedure, described combination seal sheet can prevent effectively that external dust or impurity particle from entering speed reducer inside, affects the normal operation of each transmission shaft of speed reducer and relevant main working parts; Simultaneously, described float grease seal can guarantee the relative seal of box body of speed reducer and space outerpace, avoid the fluid of box body of speed reducer inside to ooze out into the casing outside, especially under the working conditions that operating load is higher, torque is larger such as speed reducer lower velocity shaft, seal arrangement with this kind structure can guarantee that still speed reducer has stronger sealing structure and dirt exclusion capabilities, and effectively avoids the generation of the oil leakage phenomenon in the running.
In another preferred version of the present invention, described combination seal sheet comprises the annular seal sheet that the bearing of trend of some axis along described dust cover shifts to install, and each described annular seal sheet is arranged successively and fitted tightly along the bearing of trend of the axis of described dust cover.Annular seal sheet with this kind dislocation arrangement can further guarantee the sealing effect of described combination seal sheet, and so that the integral sealing effect of described reducer sealing device is able to corresponding raising.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The assembly structure schematic diagram of the seal arrangement part of the speed reducer that Fig. 1 provides for a kind of embodiment of the present invention.
Embodiment
Core of the present invention provides a kind of reducer sealing device, sealing and dirt exclusion capabilities that the sealing device can the Effective Raise speed reducer, and avoid the generation of oil leakage phenomenon; Simultaneously, provide a kind of speed reducer of using above-mentioned seal arrangement.
In order to make those skilled in the art person understand better the present invention program, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1, the assembly structure schematic diagram of the seal arrangement part of the speed reducer that Fig. 1 provides for a kind of embodiment of the present invention.
In embodiment, seal arrangement provided by the present invention, be used for speed reducer, comprise the end cap 11 that matches with box body of speed reducer 21, the inboard of end cap 11 is provided with the dust cover 12 with speed reducer driving shaft 31 coaxial linkages, be provided with combination seal sheet 13 between dust cover 12 and the end cap 11, the bottom of dust cover 12 is provided with the float grease seal 14 that matches with speed reducer driving shaft 31 and end cap 11 respectively, and upper oil sealing and the dust cover 12 of float grease seal 14 link, and lower oil sealing and the end cap 11 of float grease seal 14 fix.In the working procedure, combination seal sheet 13 can prevent effectively that external dust or impurity particle from entering speed reducer inside, affects the normal operation of each transmission shaft of speed reducer and relevant main working parts; Simultaneously, float grease seal 14 can guarantee the relative seal of box body of speed reducer 21 and space outerpace, avoid the fluid of box body of speed reducer 21 inside to ooze out into casing 21 outsides, especially under the working conditions that operating load is higher, torque is larger such as speed reducer lower velocity shaft, seal arrangement with this kind structure can guarantee that still speed reducer has stronger sealing structure and dirt exclusion capabilities, and effectively avoids the generation of the oil leakage phenomenon in the running.
Further, combination seal sheet 13 comprises the annular seal sheet (not shown) that the bearing of trend of some axis along dust cover 12 shifts to install, and each described annular seal sheet is arranged successively and fitted tightly along the bearing of trend of the axis of dust cover 23.Annular seal sheet with this kind dislocation arrangement can further guarantee the sealing effect of combination seal sheet 13, and so that the integral sealing effect of described reducer sealing device is able to corresponding raising.
More specifically, the peripheral part of dust cover 12 has the first ring-type seal groove 121, and combination seal sheet 13 specifically is arranged in the first ring-type seal groove 121.This first ring-type seal groove 121 can match with combination seal sheet 13 better, with the assembly reliability between raising combination seal sheet 13 and dependency structure, and so that the sealability of the relevant position of described reducer sealing device and parts thereof is able to further raising.
On the other hand, the bottom of dust cover 12 has the second annular seal groove 122, and the upper oil sealing of float grease seal 14 specifically is arranged in the second annular seal groove 122, and the madial wall of the upper oil sealing of float grease seal 14 and the second annular seal groove 122 fits tightly.Under the working state, the upper oil sealing of float grease seal 14 can be by reaching coaxial linkage with speed reducer driving shaft 31 with closely cooperating of this second annular seal groove 122, so that the usability of float grease seal 14 and sealing effect thereof are able to further raising.
In addition, the middle part of end cap 11 has the 3rd annular seal groove 111, and the lower oil sealing of float grease seal 14 specifically is arranged in the 3rd annular seal groove 111, and the madial wall of the lower oil sealing of float grease seal 14 and the 3rd annular seal groove 111 fits tightly.Under the working state, the lower oil sealing of float grease seal 14 is closely fixing by the 3rd annular seal groove 111 and end cap 11, thereby so that the usability of float grease seal 14 and sealing effect thereof are able to corresponding raising.
In embodiment, speed reducer provided by the present invention, comprise the casing 21 and the transmission shaft 31 that cooperatively interact, the end of casing 21 is provided with the seal arrangement that matches with transmission shaft 31 and casing 21 respectively, and described seal arrangement is specially the seal arrangement shown in Fig. 1.Sealing and the dirt exclusion capabilities of this speed reducer are better, and are difficult for occuring oil leakage phenomenon.
In summary, the seal arrangement that provides among the present invention, be used for speed reducer, comprise the end cap that matches with box body of speed reducer, the inboard of described end cap is provided with the dust cover with the speed reducer driving shaft coaxial linkage, be provided with the combination seal sheet between described dust cover and the described end cap, the bottom of described dust cover is provided with the float grease seal that matches with speed reducer driving shaft and end cap respectively, and upper oil sealing and the described dust cover of described float grease seal link, and lower oil sealing and the described end cap of described float grease seal fix.In the working procedure, described combination seal sheet can prevent effectively that external dust or impurity particle from entering speed reducer inside, affects the normal operation of each transmission shaft of speed reducer and relevant main working parts; Simultaneously, described float grease seal can guarantee the relative seal of box body of speed reducer and space outerpace, avoid the fluid of box body of speed reducer inside to ooze out into the casing outside, especially under the working conditions that operating load is higher, torque is larger such as speed reducer lower velocity shaft, seal arrangement with this kind structure can guarantee that still speed reducer has stronger sealing structure and dirt exclusion capabilities, and effectively avoids the generation of the oil leakage phenomenon in the running.
In addition, the speed reducer of using above-mentioned seal arrangement provided by the invention, sealing and the dirt exclusion capabilities of this speed reducer are better, and are difficult for occuring oil leakage phenomenon.
Above seal arrangement provided by the present invention and the speed reducer of having used the sealing device are 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 (6)
1. seal arrangement, be used for speed reducer, comprise the end cap that matches with box body of speed reducer, it is characterized in that: the inboard of described end cap is provided with the dust cover with the speed reducer driving shaft coaxial linkage, be provided with the combination seal sheet between described dust cover and the described end cap, the bottom of described dust cover is provided with the float grease seal that matches with speed reducer driving shaft and end cap respectively, and upper oil sealing and the described dust cover of described float grease seal link, and lower oil sealing and the described end cap of described float grease seal fix.
2. seal arrangement as claimed in claim 1, it is characterized in that: described combination seal sheet comprises the annular seal sheet that the bearing of trend of some axis along described dust cover shifts to install, and each described annular seal sheet is arranged successively and fitted tightly along the bearing of trend of the axis of described dust cover.
3. seal arrangement as claimed in claim 2, it is characterized in that: the peripheral part of described dust cover has the first ring-type seal groove, and described combination seal sheet specifically is arranged in described the first ring-type seal groove.
4. seal arrangement as claimed in claim 1, it is characterized in that: the bottom of described dust cover has the second annular seal groove, the upper oil sealing of described float grease seal specifically is arranged in described the second annular seal groove, and the madial wall of the upper oil sealing of described float grease seal and described the second annular seal groove fits tightly.
5. seal arrangement as claimed in claim 4, it is characterized in that: the middle part of described end cap has the 3rd annular seal groove, the lower oil sealing of described float grease seal specifically is arranged in described the 3rd annular seal groove, and the madial wall of the lower oil sealing of described float grease seal and described the 3rd annular seal groove fits tightly.
6. speed reducer, comprise the casing and the transmission shaft that cooperatively interact, the end of described casing is provided with the seal arrangement that matches with described transmission shaft and described casing respectively, it is characterized in that: described seal arrangement is specially such as each described seal arrangement in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072238.6A CN103322168B (en) | 2012-03-19 | 2012-03-19 | Reductor and sealing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210072238.6A CN103322168B (en) | 2012-03-19 | 2012-03-19 | Reductor and sealing device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103322168A true CN103322168A (en) | 2013-09-25 |
| CN103322168B CN103322168B (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210072238.6A Active CN103322168B (en) | 2012-03-19 | 2012-03-19 | Reductor and sealing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103322168B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570440A (en) * | 2014-10-16 | 2016-05-11 | 沃德(天津)传动有限公司 | Speed reducer and sealing structure thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251191A (en) * | 2008-03-28 | 2008-08-27 | 宁波东力传动设备股份有限公司 | Combined seal structure for overloading gear case high speed axis |
| CN201679947U (en) * | 2010-05-14 | 2010-12-22 | 蚌埠市行星工程机械有限公司 | Combined sealing structure of planetary wheel speed reducer |
| CN201866250U (en) * | 2010-09-02 | 2011-06-15 | 徐工集团工程机械股份有限公司科技分公司 | Combined oil seal |
| JP2011127700A (en) * | 2009-12-18 | 2011-06-30 | Tsubaki Emerson Co | Shaft seal part structure of gear reducer |
| CN102345709A (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Inversed rotating reductor |
| CN202500988U (en) * | 2012-03-19 | 2012-10-24 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
-
2012
- 2012-03-19 CN CN201210072238.6A patent/CN103322168B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101251191A (en) * | 2008-03-28 | 2008-08-27 | 宁波东力传动设备股份有限公司 | Combined seal structure for overloading gear case high speed axis |
| JP2011127700A (en) * | 2009-12-18 | 2011-06-30 | Tsubaki Emerson Co | Shaft seal part structure of gear reducer |
| CN201679947U (en) * | 2010-05-14 | 2010-12-22 | 蚌埠市行星工程机械有限公司 | Combined sealing structure of planetary wheel speed reducer |
| CN201866250U (en) * | 2010-09-02 | 2011-06-15 | 徐工集团工程机械股份有限公司科技分公司 | Combined oil seal |
| CN102345709A (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Inversed rotating reductor |
| CN202500988U (en) * | 2012-03-19 | 2012-10-24 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570440A (en) * | 2014-10-16 | 2016-05-11 | 沃德(天津)传动有限公司 | Speed reducer and sealing structure thereof |
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| Publication number | Publication date |
|---|---|
| CN103322168B (en) | 2016-08-03 |
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| C14 | Grant of patent or utility model | ||
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Address after: 300409 82 high tech Avenue, Beichen science and Technology Park, Tianjin Patentee after: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Address before: 300409 82 high tech Avenue, Beichen science and Technology Park, Tianjin Patentee before: WORLD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. |
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Denomination of invention: Reducer and its sealing device Effective date of registration: 20220610 Granted publication date: 20160803 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2022120000027 |
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Date of cancellation: 20230821 Granted publication date: 20160803 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2022120000027 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Reducer and its sealing device Effective date of registration: 20230828 Granted publication date: 20160803 Pledgee: Bank of China Limited Tianjin Hexi sub branch Pledgor: WARD TRANSMISSION TECHNOLOGY (TIANJIN) Co.,Ltd. Registration number: Y2023120000074 |
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