CN203035911U - Sealing bearing antiseep structure of speed reducer - Google Patents
Sealing bearing antiseep structure of speed reducer Download PDFInfo
- Publication number
- CN203035911U CN203035911U CN201220430924.1U CN201220430924U CN203035911U CN 203035911 U CN203035911 U CN 203035911U CN 201220430924 U CN201220430924 U CN 201220430924U CN 203035911 U CN203035911 U CN 203035911U
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- bearing
- sealing
- box bearing
- speed reducer
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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.)
- Expired - Lifetime
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Abstract
The utility model discloses a sealing bearing antiseep structure of a speed reducer. The sealing bearing antiseep structure of the speed reducer comprises a box body, a worm gear and a worm shaft. A sealing bearing is installed at the bottom of an inner cavity of the box body in a protruded mode, and rubber oil sealing, the sealing bearing and the box body jointly form a sealing cavity. Lubricating grease is filled in the cavity, the sealing bearing separates lubricating oil injected and filled in the inner cavity of the box body from the lubricating grease filled in the cavity, and a second bearing is installed on the worm shaft between the sealing bearing and the rubber oil sealing. The sealing bearing antiseep structure of the speed reducer has the advantages that a sealing effect is good; a foreign matter baffle and the lower bottom face, protruded out of the box body, of the sealing bearing are installed in a matched mode so as to prevent sediments from invading into the sealing bearing antiseep structure; adequate back pressure is provided for the cavity through an oil piston, pressure in the speed reducer is balanced, pressure difference of the sealing bearing is reduced, and reliability of the sealing bearing antiseep structure is improved; and the rubber oil sealing meets the working requirements for sealing the lubricating grease only, and the sealing bearing antiseep structure is reliable in sealing.
Description
Technical field
The utility model relates to a kind of stuffing box bearing anti-leakage structure of speed reducer.
Background technique
At present, the rubber oil sea structure is adopted in the sealing of speed reducer more, but the rubber oil sea structure has following defective in the downward sealing of shaft: 1) oil sealing is in the speed reducer casing bottom, under the gravity effect, metal and nonmetallic inclusion are deposited in the oil seal lip place, aggravate the wearing and tearing of oil sealing and axle, caused sealing early failue; 2) axle is limited by integral material with the cooperation place of oil sealing, and hardness is not high enough, and precision and roughness are difficult for guaranteeing reliability and the life-span of having reduced oil sealing; 3) under the gravity effect, oil sealing both sides pressure reduction is relatively large, has increased the possibility of seepage.Above-mentioned reason causes the General Purpose Rubber oil seal structure under the downward situation of shaft, and sealability is very unreliable, and the speed reducer oil leakage phenomenon often takes place, and it is too frequent to change oil sealing.
Summary of the invention
Under the downward situation of shaft, sealability is bad at present rubber oil sea structure for the utility model, change oil sealing problem too frequently, proposed a kind of good sealing effect, need not often change, the stuffing box bearing anti-leakage structure of long service life.
The stuffing box bearing anti-leakage structure of speed reducer described in the utility model comprises casing, worm gear, worm shaft, and described worm shaft is installed on the described casing and with worm gear and meshes; Described worm gear is installed in the inner chamber of described casing by worm-wheel shaft; Clutch shaft bearing is installed in the upper end of described worm shaft; The inner chamber of described casing is filled lubricant oil, the rubber oil sea of installation bottom of described casing, it is characterized in that: the intracavity bottom of described casing protrudes installs stuffing box bearing, and described rubber oil sea, described stuffing box bearing and described casing form the cavity of sealing jointly; Repack with grease in the described cavity; Described stuffing box bearing is annotated the lubricating grease of filling in the lubricant oil fill and the cavity with cabinets cavity and is separated; Second bearing is installed on the worm shaft between described stuffing box bearing and the described rubber oil sea.
The upper surface of described stuffing box bearing is installed the foreign matter baffle plate, and described stuffing box bearing protrudes the tank floor installation.
O type circle is installed in the outer ring of described stuffing box bearing and described casing contact position.
The plug cock hole that is communicated with described cavity is set on the described casing, and install in described plug cock hole and the plug cock of its coupling.
Described second bearing is tapered roller bearing.
During use, provide suitable back pressure by plug cock to cavity, balance speed reducer pressure inside alleviates the pressure difference of stuffing box bearing.
The beneficial effects of the utility model are: 1) lubricating grease of filling in stuffing box bearing and the cavity forms leakage preventing structure, good sealing effect; 2) foreign matter baffle plate and stuffing box bearing protrude the tank floor installation, avoid sludge to invade the stuffing box bearing anti-leakage structure; 3) provide suitable back pressure by plug cock to cavity, balance speed reducer pressure inside alleviates the pressure difference of stuffing box bearing, the trend of having slowed down oil impregnate; 4) rubber oil sea is only undertaken the effect of packing grease, has improved the reliability of sealing.
Description of drawings
Fig. 1 is stuffing box bearing anti-leakage structure figure of the present utility model
Embodiment
Further specify the utility model below in conjunction with accompanying drawing
With reference to accompanying drawing:
The stuffing box bearing anti-leakage structure of speed reducer described in the utility model comprises casing 1, worm gear 2, worm shaft 34, and described worm shaft 3 is installed on the described casing 1 and with worm gear 2 and meshes; Described worm gear 2 is installed in the inner chamber 11 of described casing 1 by worm-wheel shaft 21; Clutch shaft bearing 31 is installed in the upper end of described worm shaft 3; The inner chamber 11 of described casing 1 is annotated and is filled lubricant oil 111, the rubber oil sea of installation bottom 12 of described casing 1, inner chamber 11 bottoms of described casing 1 are protruded stuffing box bearing 112 are installed, described rubber oil sea 12, described stuffing box bearing 112 and the described casing 1 common cavity 13 that forms sealing; Repack with grease 131 in the described cavity 13; Described stuffing box bearing 112 is annotated the lubricant oil 111 and the cavity 13 interior lubricating grease 131 of filling that fill with casing 1 inner chamber 11 and is separated; Second bearing 32 is installed on the worm shaft 3 between described stuffing box bearing 112 and the described rubber oil sea 12.
The upper surface of described stuffing box bearing 112 is installed foreign matter baffle plate 1121, and described stuffing box bearing 112 protrudes the installation of casing 1 bottom surface.
O type circle 1122 is installed in the outer ring of described stuffing box bearing 112 and described casing 1 contact position.
The plug cock hole 132 that is communicated with described cavity 13 is set on the described casing 1, and install in described plug cock hole 132 and the plug cock 133 of its coupling.
Described second bearing 32 is tapered roller bearing.
During use, suitable back pressure is provided for cavity 13 by plug cock 133, balance speed reducer pressure inside alleviates the pressure difference of stuffing box bearing 112.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (5)
1. the stuffing box bearing anti-leakage structure of speed reducer comprises casing, worm gear, worm shaft, and described worm shaft is installed on the described casing and with worm gear and meshes; Described worm gear is installed in the inner chamber of described casing by worm-wheel shaft; Clutch shaft bearing is installed in the upper end of described worm shaft; The inner chamber filling lubricant oil of described casing, the rubber oil sea of installation bottom of described casing, it is characterized in that: the intracavity bottom of described casing protrudes installs stuffing box bearing, and described rubber oil sea, described stuffing box bearing and described casing form the cavity of sealing jointly; Repack with grease in the described cavity; Described stuffing box bearing separates the lubricating grease of filling in the lubricant oil of cabinets cavity filling and the cavity; Second bearing is installed on the worm shaft between described stuffing box bearing and the described rubber oil sea.
2. the stuffing box bearing anti-leakage structure of speed reducer as claimed in claim 1 is characterized in that: the upper surface installation foreign matter baffle plate of described stuffing box bearing, and the installation of described stuffing box bearing protrusion tank floor.
3. the stuffing box bearing anti-leakage structure of speed reducer as claimed in claim 2 is characterized in that: the outer ring of described stuffing box bearing and described casing contact position installation O type circle.
4. the stuffing box bearing anti-leakage structure of speed reducer as claimed in claim 3 is characterized in that: the plug cock hole that is communicated with described cavity is set on the described casing, and install in described plug cock hole and the plug cock of its coupling.
5. the stuffing box bearing anti-leakage structure of speed reducer as claimed in claim 1, it is characterized in that: described second bearing is tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220430924.1U CN203035911U (en) | 2012-08-28 | 2012-08-28 | Sealing bearing antiseep structure of speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220430924.1U CN203035911U (en) | 2012-08-28 | 2012-08-28 | Sealing bearing antiseep structure of speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203035911U true CN203035911U (en) | 2013-07-03 |
Family
ID=48688040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220430924.1U Expired - Lifetime CN203035911U (en) | 2012-08-28 | 2012-08-28 | Sealing bearing antiseep structure of speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203035911U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819270A (en) * | 2015-03-30 | 2015-08-05 | 上海济贵传动机械有限公司 | Speed reducer of oil leakage preventing mechanism |
| CN104847872A (en) * | 2014-02-14 | 2015-08-19 | 洋马株式会社 | Walking type rice transplanter |
| CN107917184A (en) * | 2016-10-11 | 2018-04-17 | 株式会社椿本链条 | Geared system |
| CN111043289A (en) * | 2019-11-21 | 2020-04-21 | 广州欧特士传动设备有限公司 | Anti-leakage worm and gear assembly process |
-
2012
- 2012-08-28 CN CN201220430924.1U patent/CN203035911U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847872A (en) * | 2014-02-14 | 2015-08-19 | 洋马株式会社 | Walking type rice transplanter |
| CN104819270A (en) * | 2015-03-30 | 2015-08-05 | 上海济贵传动机械有限公司 | Speed reducer of oil leakage preventing mechanism |
| CN107917184A (en) * | 2016-10-11 | 2018-04-17 | 株式会社椿本链条 | Geared system |
| CN107917184B (en) * | 2016-10-11 | 2020-08-21 | 株式会社椿本链条 | Gear device |
| CN111043289A (en) * | 2019-11-21 | 2020-04-21 | 广州欧特士传动设备有限公司 | Anti-leakage worm and gear assembly process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130703 |